The Approach Open is identified by number "0" and occupies the 5th position in the ICD10-PCS procedure code structure.
Below a selection of ICD 10 PCS codes related to 0DT90
Resection of Duodenum, Open Approach
Resection of Duodenum, Via Natural or Artificial Opening
Resection of Duodenum, Endo
Resection of Duodenum, Percutaneous Endoscopic Approach